{"id":"UBUNTU-CVE-2012-4436","details":"Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.","modified":"2025-07-16T07:31:01.361964Z","published":"2012-10-22T23:55:00Z","withdrawn":"2025-07-18T16:42:47Z","upstream":["CVE-2012-4436"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2012-4436"},{"type":"REPORT","url":"http://seclists.org/oss-sec/2012/q3/509"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2012-4436"}],"affected":[{"package":{"name":"fwknop","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/fwknop@2.6.0-2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.0-2"}]}],"versions":["2.0.4-2","2.5.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.0-2","binary_name":"fwknop-apparmor-profile"},{"binary_version":"2.6.0-2","binary_name":"fwknop-client"},{"binary_version":"2.6.0-2","binary_name":"fwknop-server"},{"binary_version":"2.6.0-2","binary_name":"libfko-doc"},{"binary_version":"2.6.0-2","binary_name":"libfko-perl"},{"binary_version":"2.6.0-2","binary_name":"libfko-python"},{"binary_version":"2.6.0-2","binary_name":"libfko2"},{"binary_version":"2.6.0-2","binary_name":"libfko2-dbg"},{"binary_version":"2.6.0-2","binary_name":"libfko2-dev"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2012/UBUNTU-CVE-2012-4436.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}